Revolving compressor



' F. GERLING.

REVOLVING COMPRESSOR.

APPLICATION FILED APR. 25. I921.

1;,435,462, Patented Nov. 14, 1922.

3 SHEETS-SHEET I.

J1 13 o J1'--4\ @L/ w J; 41 o 3'4 flv iJ Meazfor: j.'GerZc31 F. GERLING.

REVOLVING COMPRESSOR. APPLICATION FILED APR. 25. 1921.

1,435,462, Patented Nov. 14, 1922.

3 SHEETS-SHEET 2.

I F. GEBLING.

REVOLVING COMPRESSOR.

APPLICATION FILED, APR. 25, 192i. 1,435,462.

3 SHEETS'SHEEI 3.

Patented Nov. 14, 1922,

stairs:

stares smear re atta FREDERICK ennrrndorsrtvnn my, IDAHO, nssrenon or onus-rovers To DANIEL DALE Lone'nnn ONE-FOURTH TO RICHARD nrcnannson; orn on BOISE, IDAHO.

REVOLVING coivrrnnsson.

Applieationfiled April 25, 1921. Serial ma To all whom it may concern:

Be it known that LFRE ERICK GERLING, a citizen of the United States, residing at Silver City, in the county of Owyheeand State of Idaho, have inventednew and useful Improvements in Revolving Compressors, of which the followingis a specification.

This invention relates to a device for compressing air and otherfiuids, and more particularly to a compressor of the revolving type, such as is shown in my Patent No; 1,408,188 Feb. 28, 1922. I y

An object of. the invention is to provide a machine which has an-extremely high compressing power, which may be Operated with a minimum expenditure of power,- and in which the vibration, friction and other retarding forces are very low.

vention, which will become'obvious as the tatable shaft upon which are radially disposed a plurality of sets of compressor cylinders, pairs of the members of each set of cylinders being preferably connected to form a low pressure cylinder and a high pressure cylinder. As in my Patent #1,408,188, the

pistons which are located within the cylin-' ders are actuated by a gravity operated means wh ch, preferably, 1s m the form of penduluins which oscillate during the rotation of the shaft and are connected tolthe pistons. The invention is also characterized by the provision of a novel form of lubricating means for the compressors and other moving parts, the lubricating means also preferably being. gravity operated.

In the accompanying drawings there is shown one form of a device in which my invention may be embodied, but it will be understood that numerous changes may, be made in the structure disclosed in the draw ings and hereinafter described in detail without departing from. the scopeof the invention.

In the drawings tf c Fig. 1 is a side elevational View of the compressor, r

The above and other objects of the 'in-' Fig. 2 is a lohgitudinalfcrdss. sectionof the same, uponthe line 22 of F ig. 1,

Fig. 3 is an enlargedview of one of the radiating arms and compressing means thereon, r fig; 4 is a vertical section taken on the line 44 of Fig. 2, and f Fig. 5 is a detail view showing thelubrig eating pump construction. Referringto the drawings more in detail,.10 indicates a rotatable shaftwhich may be supported in bearings 11 formed in the upper ends of vertical arms 12. The

shaft is preferably hollow throughout a portion of its lengthto form a .chamberll3', and mayv beconnected by means of a coupling 14. to a supply line for the compressed fluid, the fluid being conducted through this line to alsuitable storing, chamberor reser voir. -Upon the shaft are mounted a plurality'of sets of compressors; andfor the purpose of supporting the sets of compress sors there radiate from the shaft arms 15, which may have a common hub 16 surround ing one end of an oil compression chamber 17 shownas formed integral with the shaft. The arms l5ghavecentral passages 15 communicating with the oil compression cham her and serve as aconduit for the lubrl'cating fluid which passes through them to the compressors and other moving parts of the device. At suitable points upon each arm are mounted compressorcylinders 18, 19, the cylinders. 'beingpositioned in pairs" and connected by pipes 20 so that theifiuid compressed in one cylinder may be conducted to the other cylinder and still further compressed. 4 In the illustrated embodiment of theinvention the cylinders 19 are intended to serve as the 'low pressure "cylinders, and the airorfluid maybe admitted through inlet valves 21 and conducted from that cylinder, aftercompression, to the. cylinderlS, from which it is conducted through the pipe line 22 to the hollow shaft. Pistons 18, 19 are located within each cylinder, and their piston rods 23 j are freely connected to a pin 25 positioned at anintermediate point upon an oscillating arm 26 which is fixedly secured to astub'shaft 27 at substantially the outer end of the supporting arm 15.

The shafts 27 oscillate in their bearings within the arms 15 and are lubricated by oil passing through the conduits 15 within each supporting arm in a manner hereinafter described. The oscillating arm 26 eX- tends inwardly toward the shaft 10, and at its inner end is provided with a weight 28 It is, of course, desirable that the swinging movement of the arms 26 be limited by other means than the contacting of the pistons with the ends of the cylinders, and for this purpose the weights are shown as provided with arcuate slots 28 through which extend studs 29 upon the supporting arms 15.

lit will be understood that more than a single pair oi cylinders could readily be connected to the oscillating arms 26', and it is desirable that the weights upon the arms be comparatively small. For this reason it is preferable that but a single pairof compressors be connected to one J'Vhen it is sought to increase the compressing power of the device an additional pair of cylinders may be placed upon the supporting arms, and if not connected to the pendulum. which operates thecompressors above de scribed, an additional pendulum may be readily placed upon the arm. 1n the drawings there is shown upon each supporting arm a secondary pair of compressing cylinders 30, 31 having therein pistons 32, 33 connected through their piston rods with pendulums which are fixedly secured adjacent the shaft 10 to studs 35 which rock within bearings in the arms 15 in the same manner as studs 27. Each pendulum 34 extends outwardly along its supporting arm and is provided with a weight 36 which may have a slot 37 through which extends the stud 29 for the purpose of limiting the movement of the pendulum. Each cylinder 31 may have an inlet valve 33, and may be connected by means of a pipe 39 to the cylinder 32, each cylinder thus serving as a low pressure, and each cylinder 32 serving as a high pressure cylinder. The cyl inders 32 may be connected to the line 22 carrying the compressed fluid from the high pressure cylinders 18 to the shaft by means of a branch 10.

In order to lubricate the compressors and other moving parts of the device 1 have illustrated a gravity operated lubricating means which is more clearly shown in Figs. 2 and 1. Positioned to one side of the coinpressor supporting arms and upon the shaft 10 is a lubricating fluid reservoir 41 which surrounds the lubricating compression chamber 17. The reservoir may be filled from a suitable inlet opening (not shown) and termed with an outlet 42 (Fig. i) which communicates with a small pump cylinder upon the exterior of the reservoir. The cylinder 13 has one open end closedby a cap 518 and working therein is a longitudinally extending rotary piston 1% with a piston rod ie extending through the cap at one end of the cylinder. The cylinder 4:3 has an outlet 46 communicating through a conduit 47 with the compression chamber 17. Upon the interior of the pump cylinder 43 is a lined longitudinally extending abutment 48 of triangular cross section, as shown in 1. The piston 44:, at each end, is of cylindrical shape, the ends having bearings within the cylinder 13 for rotation of the piston within the cylinder. intermediate its ones the piston has a segmental cut away portion into which projects the abutment t8, the cut away portion affording 'a chamber within the pump cylinder forthc reception ct fluid prior to its compression into the chamber 17. Upon the piston rod 15 is fixedly positioned an oscillating arm 50 extending toward. the shaft 10 andhaving'aweight 51 surrounding the shaft. It will be obvious that as the shaft and oil reservoir rotate the arm 50 will oscillate and thus move the piston 14: from its position. shown in l? 4 in the direction indicated by the arrow. Upon this move ment the oil which has flowed into the pump c vlind ill be 'itorced by the piston through outl t it rotates in the direction oi the abutment 18, to close the inlet 1521., and outlet 4:6. in order to prevent a return of the lubricating fluid from the compression chamber. 17, the conduit 1-7 may be provided with a checl: valve 1-7. I i

From the compression chamber 17, which tilled by means of the pump structure 13, at, the fluid takes a course through the passages 15 within the supporting arms 15 to the oscillating shafts 01" the various pendin lures and the compressor cylinders. it will be observed that the pendulums are pivotally supported upon the arms 15 and, there fore, oil can freely reach the bearings "for the pendulum supporting shafts. Adjacent the con'ipressor cylinders branch pipes 54 lead from the supporting; arms to the com- I pressor cylinders and thus lubricate the cylinders.

It is thought that the operation of the device will be clear from the above description or its construction. By way of resume however, it might be stated that the shaft 10 will initially be rotated from a prime mover of any suitable character, the power being applied to the pulley 10 located upon the shaft. As the supporting arms 15 and their c'onupressors are'rotated the pendulums will oscillate about their centers of oscillation and actuate the pistons within each of the compressor cylinders. The fluid compressed in each of the cylinders 19 will pass to the cylinders 18 to be still further compressed, and the fluid from the cyliir its ders 33 will likewise be conducted to the cylinders 32 for the same purpose. From the cylinders .18 and 32 the compressed fluid is connected from the conduit 22 and the hollow portion 13 of the shaft 10, and through the supply line to a storage chamber. During the rotation of the shaft 10 the oil pump 43 is operated by the oscillations of the arm and its weight 51, causing a thorough lubrication of the compressor cylinders and the other moving parts of the machine.

From the above description it will be noted that one of the principal diflerences between this machine and that disclosed inv of lubricating means shown, or to such de-.

tails of the fluid compressing means as may be varied without-departing from the scope of the invention, which is more particularly defined in the following claims:

1. A device of the class described com-' prising a rotatable shaft, a plurality of arms radiating from said shaft; a plurality of sets of compressors on each arm, each set of compressors comprising a low pres-- sure cylinder, a high pressure cylinder and a conduit between said cylinders, gravity operated means on each arm for actuating said pairs of compressors, and a conduit for conducting the fluid from said sets of compressors.

2. A device of the class described comprising a rotatable shaft, a plura'lityof arms radiating from said shaft; a plurality of pairs of compressors on each arm, each pair of compressors comprising a low pressure cylinder, a high pressure cylinder and a conduit between said cylinders; and gravit operated means on each arm for actuating said pairs of compressors, said actuating means comprising a plurality of,

pendulums oscillating on .each arm, each pendulum being connected to a pair of compressors. d p

3. A device of the class described compris= ing a rotatable hollow shaft, a plurality of arms radiating g compressing cylinders mounted (upon said arms, the members of each communicating to form low and high pres from saidshaft and pairsof pair of cylinders sure--cylinders,1-a conduit leading from each" v high pressure cylinder to said shaft, a

pendulum pivoted at substantially the-outer v end of each arm and extending inwardly to ward the shaft, another pendulum pivoted] adjacent said shaft and extending outwardly on the arm pistonsin said cylinders, and

connections between said pendulums and said pistons.

4. In a device of the class described-a rotatable shaft, a plurality of'radia'lly disq posed pairs of air compressors mounted upon said shaft for rotation therew th, each pair of compressors comprising alow prese sure cylinder, a high pressurecylinder, and

a conduit between said cylinders, gravity it operated means operable tion of said shaft for actuating said compressors, and means for lubricating the mov during the rotaing parts of said device, said lubricating means comprising a compression tanlcand gravity operated means including a cylinder and an oscillating piston therein for forcing a lubricating fluid into. said tank.

5..In a device of the class described, a

rotatable shaft, a plurality; of armsradiating from said shaft and rotatable therewith,

a plurality of pairs of compressor cylinders mounted upon each arm, each pair of compressor cylinders comprising a low pressure cylinder and a high pressure cylinder, a

ed upon each arm, each pendulum being connected to a pair of compressors, and said pendulums being arranged with theircen plurality of pendulums oscillatably mount- 9 5.

ters. of oscillation at opposite ends of the.

arm, and gravity operated means including I v ofthe shaft for lubr catingv the moving parts of the dea c linder and an oscillatin 2:

piston therein operable during the rotation vice.

my hand.

ln'testimony 'WheIeOfI have hereunto set FREDERICK GERLING; f 

